hi everyone, as you can see i am new here. I am trying to help a friend with her 1987 300e by replacing the serpentine belt. i got the old one off, and cant get the new one on. I loosened the 19mm bolt on the tensioner, and turn what i think is the adjustment scew (it sticks up between the waterpump and powersteering correct?) but the tensioner doesnt move. what should i do? and then i was trying to get the clutch off (dont know why) and i popped off this little plate that covers/goes around the 8mm allen head holding the clutch on, and i cant see which way it goes back on. does anyone have a picture of the clutch assembly? i would really appreciate this. thanks.